Floor height gauge



FIG. 1 is a perspective view of one side and the top of the floor height gauge according to one embodiment of my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and

FIG. 7 is a bottom view thereof.

FIG. 8 is a perspective view of one side and the top of the floor height gauge according to a second embodiment of my new design;

FIG. 9 is a front view thereof;

FIG. 10 is a back view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof;

FIG. 13 is a top view thereof; and

FIG. 14 is a bottom view thereof.

FIG. 15 is a perspective view of one side and the top of the floor height gauge according to a third embodiment of my new design;

FIG. 16 is a front view thereof;

FIG. 17 is a back view thereof;

FIG. 18 is a left side view thereof;

FIG. 19 is a right side view thereof;

FIG. 20 is a top view thereof; and,

FIG. 21 is a bottom view thereof.

The broken lines shown represent portions of the floor height gauge that form no part of the claimed design. 

CLAIM The ornamental design for a floor height gauge, as shown and described. 